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A kind of elbow erosion corrosion test system and test method

A technology of erosion corrosion and testing system, which is applied in the direction of testing wear resistance, weather resistance/light resistance/corrosion resistance, measuring devices, etc. It can solve the problems that the characteristics of corrosion and erosion damage characteristics of elbows cannot be characterized, and achieve operational Simple, cost-saving effect

Active Publication Date: 2015-09-09
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Application Information

AI Technical Summary

Problems solved by technology

However, the erosion corrosion of the elbow is a kind of local corrosion, which shows different corrosion characteristics in different parts of the elbow. Therefore, the existing experimental equipment cannot characterize the erosion corrosion characteristics of different local areas of the elbow, and the corrosion and erosion damage characteristics of small local areas. difference, showing great limitations in the study of elbow erosion corrosion

Method used

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  • A kind of elbow erosion corrosion test system and test method
  • A kind of elbow erosion corrosion test system and test method
  • A kind of elbow erosion corrosion test system and test method

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0040] Such as Figure 1-8 As shown, an elbow erosion corrosion test system includes a water tank 1, the outlet of the water tank 1 is connected to a centrifugal sand pump 3 through a pipeline, and a ball valve 2 is arranged on the pipeline between the water tank 1 and the centrifugal sand pump 3; the centrifugal sand pump 3 The output end of the test elbow 7 is connected to one end of the test elbow 7 through a straight pipeline, and the other end of the test elbow 7 is connected to the inlet of the water tank 1 through a pipeline, and a flow meter 8 is arranged in the connecting pipe between the test elbow 7 and the water tank 1; 8 is an electromagnetic flowmeter, and the inner wall of the test elbow 7 is provided with a plurality of grooves 9 at different positions along the circumferential direction and the axial direction; the bottom of each groove...

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Abstract

The invention discloses a bend pipe erosion corrosion test system and a test method, comprising a water tank, the outlet of the water tank is connected to a centrifugal sand pump through a pipeline, a ball valve is arranged on the pipeline between the water tank and the centrifugal sand pump; the output end of the centrifugal sand pump One end of the test elbow is connected by a straight pipe, and the other end of the test elbow is connected to the inlet of the water tank through a pipe; a flow meter is provided on the connecting pipe between the test elbow and the water tank; There are grooves at different positions in the circumferential and axial directions; the bottom of the groove is provided with a wire hole for leading out the test wire; the wall of the test elbow is provided with two round holes, and the auxiliary electrode and the reference electrode are installed respectively. There are multiple grooves on the inner wall of the test bend, which can be used to hang pieces in different small areas of the test bend, so that the erosive corrosion weight loss test and electrochemical test of the test bend can be carried out simultaneously.

Description

technical field [0001] The invention relates to the field of erosion and corrosion experiment devices, in particular to an elbow erosion and corrosion testing system and a testing method, which are used in a laboratory to simulate the erosion and corrosion behavior of a metal elbow in a corrosive environment under certain conditions. Background technique [0002] At present, there are three kinds of experimental devices widely used in the study of pipeline erosion corrosion: rotary experimental device, jet experimental device, and pipe flow experimental device. The common point of the experimental devices is to create a relative movement between the medium and the sample, so that the fluid can cause erosion and corrosion to the pipeline. However, the rotating experimental device has high requirements on the stability of the motor and the verticality of the rotating shaft, and the eddy current caused by the rotation is greatly affected, which cannot truly simulate the actual ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/56G01N17/02
Inventor 刘建国李自力胡宗武祁明华
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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